yes i just got 15 in the mail today. they are about 1/8" shorter than a 510 atty. i was able to get 10 drops of ikenvape vg ry4 into the carto comfortably, but it says it holds 15 drops so i will top it off once it settles a bit to see. so far so good. it heats up but not like a dc carto or anything which kind of surprised me. the th and vapor is actually quite impressive; about the same vapor as a good hitting lr boge but with a bit more th, probably due to the slightly lower resistance. as for the life of the carto, i will have to update in a few days on its performance.